Steam trap



May 20 1924.

4 1,494,486 F. 1.. HUTCHINSON STEAM TRAP Filed March 20v 1922.

Iig a 2 .Sheets-Shdet 1 IN V EN TOR.

A TTORNEYJ.

Patented May 20, 1924.

UNITED s'mrss PATENT OFFICE.

rowan APPLIANCE coiurm, or MILWAUKEE,

Wisconsin.-

WISCONSIN, A CORPORATION or 1 s'rE'Am' TRAP.

Application-filedMarch-"20,1922. Serial No. 545,160.

Toall' whom it mag concern;

Be it known that. I, FRANK L. Herein:- SON, a citizen of the United States, and resident of Milwaukee, in the-county of'Mil- 5 waukee and Statefof Wisconsin, have invented new and useful Improvements in Steam Traps, of which the following is a description, reference being hadto the ac.- companying drawings, which are a part of thisspecification.

This invention relates to improvements in steam trapsandparticularly to a device of this type, adapted to :be connected tor'adiators togcontrol the new er,..steem-or vapor to the radiator and to further" control the discharge or the heater of "condensation therefrom.

This invention eenteinpwtes the provision of means whereby the control of the steam is automatically regulated during the discharge of the water of condensation and 'fHrthermoreprovideS means whereby the accumulated water of condensation is automatically and periodically discharged. when a suflicient amountv thereoffhasf accumulated. This invention further-embodies means whereby accumulated air in the radiator may be forced out of the same upon the entrance of steam into the radiator, the said air being discharged through a speciaLpas- 'sageway provided for that purpose. Another feature of this improved construction is the "means whereby the How of steam may be manually regulated without destroying .the

automatic means forming one of the primary featuresof construction. I

One illustrative example of this invention is shown in the drawin s and described in the accompanying speci cation. so that those skilled in this particular art m y readily appreciate the advantages derived there from, but it should be understood that'while one physical embodimentis illustrated, the invention is capable of application to various modifications of the structure illustrated, without departing from'thesp'irit and scope of the same; g

- Inthe drawings: e j I Figure 1is a; planview'of the valve and steam trap structure :with the top, cap theref m v d, e r. i

Fig. 2 is a vertical-. section through .the ,device on the plane -'indicated-..by in Fig-1;;- mm p Fig. 3 is an enlarged vertical section, partly 1n elevation, taken on the plane indicated by 11ne 33 in Fig. 1.

I Referring now, partlcularly, to the drawings wherein like reference characters represent like parts, the, reference character 10 indicates a casing, threaded as at 11, having connection to the bottom of the radiator. The inletport 12, is connected to a suitable source of steam or vapor supply and the inlet passage is composed of a pipe section 13, in which there is disposed a butterfly valve .14, whereby the supply of steam, which is to "be admitted to the radiator, may be controlled. The inletpassageway further comprises a conduit 15, communicating with the pipe section 13, and in turn, communicating with the steam chamber 16, formed by the casi ng.- A pipe connection may be made withan outlet17, for conductingsteam-into theradiator' when the-device is used in connection with radiators of large dimensions. The large threadedpipe 11, .by which the main connection withthe" radiator is' accomplished, provides means for the return of the waters of condensation through a passageway 18, formed in the casing 10.

Threaded into the lower end of the casing Y 10 is aplug 19, the upper end of whichis formed into a valveseat for the reception of the ball valve 20. .Suitable space is provided around the valve plug 19, whereby the waters of condensationaccumulateand there- .upon raise the ball valve 20 to permit these waters to pass into a water chamber 21 {the valve plug 19, may be provided with'openings 22, for this purpose.

Mounted within the casing 10 is a float the wateroutlet passage, 26. The valve stem 24, is provided witha central passagev way 27 withits apertures near the upper end thereof, the lower end of the valve stem being open. The wall ofthe casing 10, leading to the passageway-18, is pierced as at 29, whereby accumulated air in the ra- Idiator, which is displaced by the entrance of steam therein, may be forced out of the radiator through the openings-'29. into the apertures 28, and through the hollow valve valve 23,.guided on'ahollow valvestem 24, P which in turn carries a valve 25, controlling the radiator without in any manner aifectmg other operations of this improved device.

Suitably secured to the casing 10 is a bracket 30, upon which there is pivotally sup ported as at 31, a lever 32, pivoted adjacent one end thereof to the link 33, connected to the float 23. The lever 32, has connected thereto a trip weight 34, this connection being pivotal, a collar 35, being formed on the stem of the trip weight. r

The valve stem 24, provided with a collar'36, which is adapted to be engaged by a lever 37, formed with the stem or 15 the trip wei ht. Therefore as th float 23, ascends, the lever-32, is rocked, this rock" mg motion in turn swinging the trip weight 34,'to the left, past the center, whereupon 1t drops to the osition illustratedin Fig.

2-0 2 and moves the lever arm 37, which in turn engages thecollar 36 ofthe valve stem 34, l fting the valve ,from its seat and permittlng an escape of the water of condensation,

The upper end of the valve stem #24, is

25 provided with ahead 3'8, which is engaged by 'aswmgmglatch 39, pivotally supported wlthln the'caslng 10. The Latch 39, swings by gravity toen'gage the head 38 when the valve stem 27, has been moved past the same. A cam 40, formed on the weight 34, engages the latch 39 when th 'trip weight has been;swun' toward the right, thereby moving the late 39 from engagementhwith the head 38,, andpermitting the valve to descend. The lever 32, is provided'with a welght '41 to counterbalance this lever.

For manually operating the butterfly valve 14, there is provided a handle 42, connected to alever 43,-one end of which is 40 connected to the butterfly valve while the other end is connected to an ad'ustable connecting rod 44. Ohviousl' t erefore, by pro erly man pulating the handle lever 42, the utterfiy valve ma be adjusted and the amount of steam regu ated. However, this aglpistment 1n no way afiects the operation 04 the automatic means for opening and closing the butterfly valve,

The plug 19', which as hereinbefore stated,

is removable, enables the sediment and the like to'be cleaned'outof the bottom of the casmg'lO, and hence no sediment will form on the valve seat carried by this plug, which would, in any manner, affect the proper seatmg of the ball valve- 20. M I Inasmuch as the ball valve 20 seats on a plane below the bottom of the radiator and hence operates to permit the Water of condensatlon to "escape as it accumulates around the plug 19', no water will bepermitted to accumulatein the bottombf the radiator. I o

The operation of this improved device will be apparent'without afurther detailed doas scription of the same and by the use of such opening said chain er, an outlet for said chamber, a valve 4L Ina valve device of theclass-described, a asingadapted tobeconnected to the botobvious that various changes in. form and design may be made without departing from the spirit and scope of the invention.

What is claimed is: 1

1, In a device of the class described, a casing' connected to, a radiator, a valve for controlling the passage of steam Vfromthe source of supply, an exit for the water of condensation, and means operated by the accumulated water of condensation for exitand controlling the passage of steam,

'2. In a device of the class described, a casing adapted to be connected to the lower 'end of a radiator, a conduit for'steam in said casing and connected to a source of supply, a valve in said conduit for controlling said steam, a chamber for the Water of condensation, an exit for the'water of condensation and a valve' for" controlling saidexit, and means operated by the .water ofcondensation for controlling saidsteam hee dmid water we v 5 3. Avalve device and steam, trap fo'ruse in'oomtination with a radiator comprising a casing adapted to be connected I to j the bottom of a radiator, a steam passageway in saidlcasing connected to asource of steam 'supply, a valve for controlling the passage of steam, a chamber for the'water of cond'ensation, a valve means for controlling the passa e of said water of condensation to said v forcontrollingsaid 'outlet, and a float actu'-- ated, means operatively connected to said steam controlling valve and said last mentioned valve; whereby an accumulation of the'water of condensation Willcause said 1 steam controlled was to be closed and said' last mentioned valve to be opened.

tom of a radiatorpa steam conduit'in said cas ng connected to a source of steam'supply, a valve in said conduit, a chamber in saidlcasing Zfor Qthewater' of condensation, a valve controlled passageway for conducting thewater of condensation from the radiator to said chamber; a water exit, and a valve controlling said exit and means operated by the accumulationgof the Water of condensation for closing said steam conduit valve and openingsaidwater exit valve, said means-retaining said Water exit valve open until the. water of condensationj has been entirely discharged. 5. 'In a valvedevice er the class described, a casing adapted to be connected to the bot 1 0 and said water valve, said means embody-i ing a latch for retaining said water outlet valve open until all the water of condensation has been discharged, and manually controlled means for operating said steam controlled valve.

6. The combination with a radiator of a steam trap and valve controlling device,- comprising a casing adapted tobe connected to the lower end of a radiator, a steam passageway through said casing, a valve controlling the passage of steam through said passageway, a chamber formed in said casing for the water of condensation, a passageway for conducting the water of condensation from said radiator to said chamber, a removable plug positioned in said passageway, and formed with a valve seat, a float valve positioned on said seat, a water exit for said chamber, a valve controlling said water exit, said valve being provided with a hollow stem and apertures therein, a passageway formed in said casing whereby air displaced from said radiator may escape through said casing and hollow valve stem to said water exit, a trip weight, means connecting said trip weight to said steam controlling valve, means on said valve stem and engageable by said trip weight for raising said water exit valve, a float for operating said trip weight, and a latch for holding said water exit valve in open position, said latch being released by said trip weight.

In testimony whereof, I afiix my signature.

FRANK L. HUTCHINSON. 

